TM 9-2330-294-14
Figure 4-57. Brake release valves and air reservoir fill valve.
b. Replacement and/or repair of the magnet valve
4-46. Fail-Safe Air
Reservoir Check Valve (One-
and regulator valve on semitrailer no. 1 through 200
Way)
is not necessary.
a. Removal.
4-48. Air Suspension Control Valve
(2) Disconnect air line from check valve.
a. Removal.
(3) Unscrew check valve from fail-safe reservoir
port. Remove adapter from valve.
(2) Disconnect six air lines from valve.
b. Installation. Install valve in reverse order of
(3) Remove two cap screws (1), lock washers (5)
removal.
and nuts (6) that secure valve (2) to mounting
bracket and remove valve. Disassemble fittings from
4-47. Magnet Valve and Regulator Valve (15 psi)
valve,
a. The magnet valve and regulator valve are used
b. lnstallation. Install valve in the reverse order
in conjunction with a retarder switch located in the
of removal.
cab on the M746 pre-production tractors only.